package com.tfswue.zqm.config;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.annotation.Order;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.util.MultiValueMap;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;
@Order(-1)
//注入Spring容器
@Component
public class AuthoritionFiltter implements GlobalFilter {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
//        1.获取请求参数
        MultiValueMap<String, String> params = exchange.getRequest().getQueryParams();
//        2.获取authorization参数
        String auth = params.getFirst("authorization");
//        3.校验，往authorization中放入ToKen
        if ("admin".equals(auth)) {
//            放行
            return chain.filter(exchange);
        }
//        4.拦截4.1.禁止访问，设置状态码
        exchange.getResponse().setStatusCode(HttpStatus.FORBIDDEN);
//        4.2结束处理
        return exchange.getResponse().setComplete();

    }
}